Great Firewall of China
Will blogs topple the CCP?
On the other end of the spectrum of hope, it is a little known fact that Google-often cited as a champion of the free flow of information-is helping the Chinese government censor the internet as accessed by the Chinese people.
Accusations against Google
Admission by Google
I seem to remember seeing a news story about a year back about some iniative, in which Bill Clinton was a participant, that would allow the Chinese government to more efficiently block websites. It wasn't being sold to the public that way, but that was the net result. I can't find the story at the moment though.
Update: According to Yahoo, China has ordered all websites in China to register as a means of better restricting access to those they don't like.
Update2: Microsoft is now also facilitating the enforcement of the Great Firewall of China. (See article and commentary)
Update 3: Global Voice is putting the censorship to the test.